Our founders created a system where the individual that wanted to make his own way in the world could do just that and be protected from the "collective". The system's final safe guard was supposed to be the SCOTUS. The SCOTUS was to be the watch dog so the individual could concentrate on his own life and not have to constantly look over their shoulder to see how the statist were creeping up on him/her. This system allows personal productivity to skyrocket, buy alas it has never worked. THe SCOTUS has been a dismal failure since the beginning.
The purpose of our three-headed system is to divide power in order to protect individual rights. In that sense, none of the parts is final IMHO. The final protection is the very fact that “We the People” are sovereign, the very thing that makes America “exceptional”. It is and always has been our duty to be vigilant to protect gainst a day when it is necessary to reclaim our rights thru something other than the ballot box. We are our own final guardians. We are the ones we have been waiting for. Did I just say that? :-)